| Vendor | Spec | Unit | Price | Currency | Date |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 745.59 | USD | 20250918 |
| Sinopec Northeast Natural Gas Sales Co., Ltd. | China national standards | MT | 618.98 | USD | 20250918 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 599.28 | USD | 20250918 |
| BASF-YPC. Co., Ltd. | China national standards | MT | 534.57 | USD | 20250918 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 689.32 | USD | 20250918 |
| Shandong Hongshuo Chemical Technology Co., Ltd. | China national standards | MT | 506.44 | USD | 20250918 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 492.37 | USD | 20250918 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 541.61 | USD | 20250918 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 541.61 | USD | 20250918 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 541.61 | USD | 20250918 |